baber/WOPTO huggingface dataset:
Patent GB-130984-A (GB)
Title: Engine Starting Apparatus.
Inventor: DELANO JAMES KENDALL
IPC: F02N15/00
Filed: 1919-08-05
Abstract: 130,984. Delano, J. K. Aug. 3, 1918, [Convention date]. Turning-gear.-In a starting-device for aeroplane or other engines comprising reduction gear which can be actuated electrically or by hand at different rates of reduction, a starter shaft 15, in line with a shaft 13 secured to the engine shaft S, can be actuated by a crank-handle and carries a gear wheel 18 meshing with a pinion 19 driven by an electric motor M. The starter shaft 15 is connected to the shaft 13 by reduction gear comprising an internally-toothed member 132 on the shaft 13, with which engages an externally toothed gear 27 having fewer teeth and mounted on ball bearings on an eccentric 29 keyed to the shaft 15. The reduction gear 27, 132 transmits motion in one direction only and is controlled by a device comprising a ratchet gear 21 mounted in ball bearings 211 on the shaft 15 and in roller bearings 22 on a flange on the gear 27. The ratchet is engaged during starting by one of a pair of pawls 301, 302 of different length, which are withdrawn when the current to the starting-motor is cut off by a switch 33, 35. Between the faces of the gears 21, 27 is a plate 25 with radial slots engaged by headed pins 26 carried by the gear 27 and similar pins carried by the gear 21, so that when the ratchet gear 21 is held by the pawls, the gear 27 is held against rotation and effects slow rotation of the gear 132 connected to the crank-shaft. Auxiliary apparatus such as a generator, speedometer, or machine-gun synchronizer may be driven by the bevel gear 14 secured to the shafts 13, S and by external teeth 133 on the gear 132. The starter shaft 15 may be driven by hand from an inclined shaft through bevel gears, one of which can be mounted on a key 152; the inclined shaft is in that case supported in an opening in the gear case. The electric motor M is supported by its end in a recess 20 on the endplate 16 of a casing for the turning-gear and is retained by a set-screw 201. The gear casing is mounted on the end of the engine crank-case. The Specification as open to inspection under Sect. 91 (3) (a) states also that an auxiliary magneto for ignition at starting may be driven by a pinion in mesh with the gear 18 and with a pinion on the magneto shaft. This subjectmatter does not appear in the Specification as accepted.
Patent GB-671682-A (GB)
Title: Venetian blind mechanism
IPC: E06B9/307
Filed: 1949-07-22
Abstract: 671,682. Venetian blinds. LORENTZEN. Inc., L. July 22, 1949, No. 19316/49. Class 20(iii) Comprises several constructions of venetian blind tape rockers having a resilient metal body biassed to engage a non-circular tilt rod resiliently whereby there is no lost motion or play between the rod and the rocker. In the form shown in Fig. 2, for example,. the rocker comprises a sheet metal plate 32 curved to a substantially complete cylinder. Ears 40 having apertures 42 of the same shape, but larger than, the section of the tilt rod are formed at each end of the cylinder. The ears are 180 degrees apart and in the normal condition of the cylinder the apertures are out of alignment; by contracting the cylinder somewhat the apertures are brought into alignment and the cylinder may be slipped along the tilt rod to the required position. On release of the cylinder its natural resilience causes it to expand again so that the apertures 42 again tend to move out of alignment and thus cause the arms 40 to grip the tilt rod firmly. A special tool may be provided for contracting the cylinder. The looped ends of the tapes are engaged over fingers 36, 37 at the ends of the curved plate 32, one of the fingers of each pair being longer than the other to facilitate the engagement of the looped ends as in Specification 671,726.
Patent GB-888488-A (GB)
Title: Improvements in or relating to electrical distributing panels or boxes
Inventor: WYAND FREDERICK ST CLAIR WHITM
IPC: H01R25/00
Filed: 1958-06-17
Abstract: 888,488. Two-part couplings. BRITISH CENTRAL ELECTRICAL CO. Ltd. Sept. 15, 1959 [June 17, 1958], No. 19386/58. Class 38 (1). An electrical distributing box of the kind including a number of sockets for connection to the supply mains and arranged for receiving plugs comprises an insulating base 10, e.g. of rubber, formed with narrow concentric grooves 11, 12 and 13, which accommodate three contact strips 47, 48 and 49, one for connection to each conductor of the supply cable and formed with sockets 50 to 53, 56 to 59 and 62 to 65 housed in enlarged recesses in the grooves. The groups of sockets 62, 56 and 50, 63, 57 and 51, 64, 58 and 52 and 65, 59 and 53 are appropriately spaced for the pins of a standard threepin plug, and a coverplate 8 (Figs. 4 to 6, not shown), secured to the base is provided with openings which register with the groups of sockets. A lead-in recess 16 for the supply cable is provided in the base and a cartridgetype fuse, not shown, in the connection between the cable and the contact strip 49 may be accommodated in a T-shaped recess 19 formed at the end of the outer groove 13. The coverplate may be formed with or have secured thereto thin flexible material which extends over the openings for the plug pins to prevent the entry of dirt or moisture, the material being slit to allow the introduction of the pins. Another set of grooves may be formed in the other face of the base 10 for accommodating contact strips, the sockets on one face being suitable for one size of plugs and the sockets on the other face for different sized plugs.
Patent GB-1204618-A (GB)
Title: Arrangement for bringing a rotating system controlled by means of a servo-system into phase with a reference signal and keepiing it in phase
IPC: H02P23/18
Filed: 1968-04-24
Abstract: 1,204,618. Automatic speed control. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 24, 1968 [April 26, 1967], No.19414/68. Heading G3R. A motor 2 drives an apertured disc 4 cooperating with a lamp 6 and photo-cell 7 to produce a pulse for each revolution of the disc, a train of these pulses forming a control signal 8 representing the speed of the motor. An eddy-current brake 10 is fed through amplifier 11 with a regulating signal 12 derived from a bi-stable multi-vibrator 13 which passes to a first stable state by the control signal 8, and to a second state by pulses of a reference signal 14. When the system is synchronized the two signals have the same frequency, each reference pulse being followed by a control pulse. A short time before a reference pulse is received, stage A of multi-vibrator 23 is blocked, its stage B being conducting. Gate 21 is closed, gate 22 is open, and a monstable multi-vibrator 19 is in its stable state so that gates 17, 18 are open, the multi-vibrator 13 being in its first stable state. When a reference pulse is received, the multivibrator 19 does not change state, and the gates 17, 18, remain open. The reference pulse is passed through gate 17 to the multi-vibrator 13 which passes to its second state. The multivibrator 23 changes state whereby gate 22 is closed and gate 21 is opened. When the next pulse of the signal 8 is received, the multi-vibrator 19 does not change state and the gates 17, 18, remain open. The pulse passes through the gate 18 to the multi-vibrator 13 which passes to its first state, the stage B of the multi-vibrator 23 becoming conductive so that gate 21 is closed and gate 22 is opened. In this manner, the multivibrator 13 delivers the pulse train 12 for controlling the brake. When the system is being started, a number of pulses of the reference signal occur between successive pulses of the signal 8. In these circumstances, the multi-vibrator 13 does not change its state continually but remains in a single state for a period dependent upon the time constant of the multi-vibrator 19. The motor is thus given time to be brought into synchronizm. In another arrangement, the multi-vibrator 23 and the gates are not connected directly to the leads for the reference and control signals, but to the ouputs of the gates 17, 18, Fig. 3 (not shown). In a further embodiment, the multi-vibrators 13, 23, are combined to form a signal bi-stable multivibrator, Fig.4 (not shown).
Patent GB-961964-A (GB)
Title: High frequency tube apparatus
IPC: H01P1/08
Filed: 1960-08-08
Abstract: 961,964. Velocity-modulated beam tubes. VARIAN ASSOCIATES. Aug. 8, 1960 [Aug. 6, 1959], No. 19529/63. Divided out of 961,961. Drawings to Specification. Heading H1D. A klystron amplifier for broad-band response having at least four resonant driver cavities arranged for successive interaction with an electron beam, the resonant frequencies of the cavities being distributed over the operating frequency band of the amplifier, the loaded " Q "s of the cavities that are resonant at frequencies within a lower part of the band decreasing with increasing resonant frequency, and the loaded " Q "s of those cavities that are resonant at frequencies within a higher part of the band increasing with increasing resonant frequency. The resonant frequency of the cavities may increase from cavity to cavity in the direction of travel of the beam electrons or the second such cavity may have the lowest loaded Q. The tube may be constructed as described-in Specification 961,961.
Patent GB-279954-A (GB)
Title: Improvements in mechanism for clamping together concentrically mounted members
IPC: B23Q1/28
Filed: 1926-08-07
Abstract: 279,954. Herbert. Sir A., and Vernon, P. V. Aug. 7, 1926. Drilling-machines.-Means for clamping together the sleeve and column of a radial-arm drilling machine comprise a two-part ring having a floating connection with one member by means of a tongue on each part and adapted by expansion or contraction to take up all float between the members and then grip them. The sleeve 2 is rotatable on the column 3 by means of a roller or ball bearing 4. The clamp consists of a ring 5 divided diametrically at 6, 7 and having at one side upwardly projecting tongues 8 which engage floatingly with a recess in the sleeve having bevelled ends 11. The other side of the ring is provided with bosses 18, 19 through which is passed a bar 17 having at one end a nut and spherical washer 21 and at the other end a recess 22 in which a cam 23 is rotatable by a spindle 25 to draw together the two parts of the ring. Slots 12 in the ring serve to give it flexibility. The ring is suspended from the sleeve 2 by links 13 and pins 14, 15 on the sleeve and ring, the links having axial play on the pins and preferably being under the influence of spring washers 16. The clamping ring may be expanded into contact with the sleeve and may be housed in a recess in the bore of the sleeve. The provisional Specification states that the parts of the ring may be articulated between their points of attachment to the sleeve and the position at which the clamping mechanism acts.
Patent GB-1106182-A (GB)
Title: Control device for fluid-pressure operated universal excavators
IPC: E02F9/20
Filed: 1965-05-10
Abstract: 1,106,182. Excavators. ORENSTEIN-KOPPEL UND LUBECKER MASCHINENBAU A.G. 10, May, 1965 [9, May, 1964; 10, Sept., 1964], No. 19601/65. Heading E1F. Driving and braking of a winding drum on an excavator are controlled by a fluid system comprising valves and controls which can be operated to a release the brake and wind up the drum, b release the brake and allow the drum to unwind freely (under gravity), and c to partially release the brake by fluid action leaving the final brake release to be controlled by a foot pedal to permit a controlled gradual unwinding of the drum. Valves are also incorporated in the system against overloading.
Patent GB-277300-A (GB)
Title: Improvements in or relating to methods of starting and lighting power vehicles
IPC: B60R16/02
Filed: 1927-07-23
Abstract: 277,300. Soc. de Paris et du Rh¶ne. Sept. 8. 1926, [Convention date]. Addition to 262,064. Starting prime movers.- To increase the starting torque of an auxiliary brush dynamo when starting motor vehicle plant the shunt field winding is supplied by a higher tension than the normal. According to Fig. 2, the armature windings between the auxiliary brush 5 and main brush 7 are short-circuited by a switch 1. A resistance 8 (which may be that of the brush 5 itself) may be included in this short-circuit. The resistance may remain in circuit during generating, the cross-section of the shunt field winding 6 being increased. The short circuit may include the series winding also. According to Fig. 4, the auxiliary brush 5 of a four pole machine with two main brushes may be moved into the position 5<1>. This modification may be applied irrespective of the number of poles or brushes since the auxiliary brush may be moved into contact with a main brush.
Patent GB-238538-A (GB)
Title: Improvements in the control means for clutches, brakes and other control arrangements for motor or power vehicles
IPC: F16D23/12
Filed: 1925-08-04
Abstract: 238,538. Athimon, F. Aug. 14, 1924, [Convention date]. Operating clutches.-A device for assisting and rendering progressive the actuation of mechanical control devices, such as motor-vehicle clutches, comprises an elastic element which is normally stressed but inoperative on the control member, and means for progressively changing the line of action or point of application of the elastic element, whereby it may assist in overcoming the load on the control member. In one form, a clutch pedal 16, Fig. 1, is connected by a cable 20 to a member 4 slidable in a fixed frame 1. A lug 8 on the member 4 carries a pivot pin 10, Fig. 3, having flattened portions resting on an abutment cup 11 for a spring 12, held compressed between it and an adjusting-screw 13 in a stirrup 1, which is pivoted on fixed trunnions 5, 6 and normally held by a spring 15 at right-angles to the part 4. On depressing a foot plate 18, pivoted on the pedal 16, a cable 21 acts on an arm 14 on the pin 10 to swing the stirrup 7 into the position marked 7<a>, so that the spring 12, in its position 12<a>, acts on the part 4 approximately to balance the clutch spring (not shown). On depressing the pedal 16 to declutch, the spring 12 expands; after release of the pedal and then of the plate 18, the spring 15 restores the stirrup 7, the clutch pressure rising progressively as the stirrup swings back. In a modification, a spring 26, Fig. 4, is held in tension between an adjusting-fork 25 and a fork 37 carrying a pin 36, Fig. 6, which is normally held by a spring 38 in line with fixed trunnions 28, 29 engaging curved slots 31, 32 in a forked member 30. The pin 36 carries a roller 35 or ball bearing, engaging a slot 34 in a. central lug 33 of the part 30, and is connected by two cables 43, guided on pulleys 44, to the foot plate 18, the pedal 16 being connected by cables 40 to points 41, 42 on the member 30. Depression of the plate 18 draws down the fork 37, as shown at 37<a>, into line with the cables 40, and, on moving the pedal 16, the spring 26 contracts, the part 30 turning and sliding on the trunnions 28, 29.
Patent GB-504329-A (GB)
Title: Improvements in winches and particularly in those used for launching and raising lifeboats for ships
IPC: B63B23/18
Filed: 1938-07-04
Abstract: 504,329. Winches. SOC. SALVARE. July 4, 1938, No. 19732. Convention date, July 6, 1937. [Class 78 (v)] Two helically - grooved winding-drums 2 are mounted freely on two parallel fixed shafts 3, and are geared together by pinions 4. Separate cables 30 are wound on the drums 2, and may be attached to the two ends of a boat for even lowering and raising, the winch being located in the boat. Power is applied through a handle on a shaft 12 geared by way of pinions 11, 10, 8, 7, 5 to one of the pinions 4. On the shaft 12 are arranged two brakes, one normally in action to prevent any movement of the winch drums 2, and the other coming into action only when the first brake is released and being of the centrifugal type to allow of a regulated unwinding of the drums. The permanent brake comprises jaws 18, Fig. 5, pivoted together at 21 and pressed over a cylinder 16 by springs 20. The cylinder 16 carries pawls 15 which engage a ratchet wheel 14 keyed to the shaft 12 and pinion 11. Integral with the drum 16 is a sleeve 28 extending radially from which are pins 27 on which ride brake sectors 26 bearing through pads 19 on the jaws 18. Thus when the pressure on the cylinder 16, held to the shaft 12 by the pawls 15, is released by turning a lever 24 fitted with a jaw-separating cam 22, the pull on the cables 30 unwinds the drums 2 and the sectors 26 on the rapidly rotating shaft 12 fly out to apply a steady braking action, which depends on the mass of the sectors and the speed of rotation. The lever 24 is fitted with a removable extension 25 protruding through the gear casing 1, and this extension may be applied to another lever which operates a dog clutch between the pinions 7 and 5 in order to free the drums completely from the brake. Each cable 30 is provided with a ball end 31, Fig. 7, for ready attachment to the drum 2, the ball sliding in a slot 32 formed in the drum cheek. Specification 404,132, [Group XXXIII], is referred to.
Patent GB-499011-A (GB)
Title: Improvements in and relating to electric welding apparatus
IPC: B23K9/025
Filed: 1938-07-04
Abstract: 499,011. Heating by electric arcs. BRITISH THOMSON-HOUSTON CO., Ltd. July 4, 1938, No. 19753. Convention date, July 3, 1937. [Class 39 (iii)] In simultaneous arc welding of adjacent parallel seams 3, 4 using two electrodes 5, 6 fed from independent sources each counterpole is applied to the workpiece at a point nearer to the other electrode than to its own electrode. The electrodes lie one behind the other in the direction of progression of the seam and the distance between the rear counter-pole 10 and electrode 5 is greater than the distance between counter-pole 9 and electrode 6.
Patent GB-1495878-A (GB)
Title: Microwave oven
IPC: H05B6/80
Filed: 1976-05-13
Abstract: 1495878 Microwave ovens MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 13 May 1976 19833/76 Heading H5H [Also in Division G3] A microwave oven uses an infra-red detector to sense the radiation temperature of two or more regions in its heating cavity and controls the generation of microwaves according to the highest temperature sensed. A pyroelectric infra-red radiation detector 5 comprising, e.g. a lead titanate crystal is mounted in the roof of the heating cavity and has a perforated disc or discs 17, 18 (see also Figs. 5, 8 and 9, not shown) arranged to rotate in front of it allowing the radiation from a series of regions within the cavity to impinge sequentially on the detector. The detector itself may be scanned radially as a perforated disc is rotated in front of it (Fig. 9, not shown). Due to the high emissivity of the food or ceramic cooking vessel compared to that of the highly polished metal walls of the heating cavity; the higher infra-red fluxes detected will represent the food temperature. The pulses from the detector are used to switch the microwave generator off when a preset threshold is exceeded. A turntable may be provided on the floor of the heating cavity for rotation of the food during heating and a cooling air supply (Fig. 6, not shown) which flows from the infra-red detector compartment into the heating cavity to keep the detector clean may also be provided.
Patent GB-834756-A (GB)
Title: Improvements in and relating to gravity-controlled electric switches
IPC: H01H35/02
Filed: 1958-06-20
Abstract: 834,756. Gravity switches. BLACKBURN GROUP Ltd., [formerly BLACKBURN & GENERAL AIRCRAFT Ltd.], and MULLENEUX, P. A. June 20, 1958, No. 19841/58. Class 38 (5). A gravity-controlled switch device suitable for aircraft comprises a short cylindrical casing 1 closed at each end (Fig. 2, not shown) by a plate carrying a mass 6 and pivot arm 5 which can move about a central pivot between stops 7, 8, movement towards stop 8 being damped by a rod 9 and tube 10, and causing a microswitch 11 to be actuated by a lever 12 with a roller 13 engaging the arm 5. The components of each plate form mirror images, one of the other about a vertical line through the coaxial pivots, and the two microswitches are connected in series in a controlled circuit, so that a substantially complete inversion of the device is necessary to cause both masses to move, each thereby actuating its microswitch to complete the controlled circuit. Acceleration causes only one mass to move and hence the circuit is not completed.
Patent GB-1325957-A (GB)
Title: Apparatus for grading of articles capable of rolling movement
IPC: B07B13/05
Filed: 1971-06-10
Abstract: 1325957 Endless conveyers C RODA 10 June 1971 [13 June 1970] 19846/71 Heading B8A [Also in Division B2] An apparatus for grading articles, e.g. fruit, having a substantially circular cross-section in at least one direction so as to be capable of rolling, comprises an endless feed conveyer belt 2 having parallel rotatable rollers 1 between which the articles P to be graded are laid, means 103 for positively driving the conveyer belt, means for causing rotation of the rollers so as to cause the articles P to roll, and an inclined shoot 4 by means of which the articles are delivered from the discharge end of the feed conveyer belt on to the inlet end of a supporting endless belt conveyer 111 which passes beneath grading means 16 which are mounted at decreasing heights, a rotary turnstile-like wheel 28 having paddles or arms being provided to control rolling of the articles down the shoot. The means for driving the feed conveyer belt 2 consist of a pair of discs 103 mounted on a drive shaft 3 and having notches 203 which engage projecting pivots of the rollers 1. Rotation of the rollers is caused by friction rims on the ends of the rollers rolling on a fixed track (13), Fig. 3 (not shown), fastened to the conveyer frame. The endless belt conveyer 111 carries spaced pairs of parallel rollers 11, 12 provided at their ends with trunnions 112 for engagement with notched chain driving wheels 8 keyed on a driving shaft 108. The rollers are each provided at one end with a friction rim which cause rotation of the roller when pressed against fixed upper tracks 15. The grading means consist of transverse rows of slats 16 lined at their undersides with friction material and swingably mounted on pivot rods 18. Each slat 16 has a tail portion 116 bent upwardly for abutting, during downward swinging of the slats, against a horizontal abutment bar 19. The rod 18 and bar 19 of each row of slats 16 are fastened to a pair of nuts 20 screwed on threaded spindles 21, which are provided with operating hand wheels 22 and sprocket wheels 23 interconnected by an endless drive chain 24 in order to effect vertical adjustment of the rod 18 and bar 19. Shoots G are provided below and between the rows of slats 16 so that articles P displaced from the rollers 11, 12 by the slats 16 fall down on to transverse conveyers T. A first shoot G1 leads to a transverse conveyer T1 for articles fed in excess which may be returned to the feed conveyer. The movements of the driving means of the feed conveyer 2, supporting conveyer 111  and turnstile wheel 28 are synchronized.